Standing · figures as of
The December Deadline
By December 19, 2026, a by-election must be called in Saint-Hyacinthe—Bagot—Acton, the soonest deadline of the six empty House of Commons seats waiting for a call. Scarborough North’s falls due next, by February 13, 2027.
When are the next federal by-elections in Canada?
- Soonest callDec 19, 2026Saint-Hyacinthe—Bagot—Acton; Scarborough North next, Feb 13, 2027
- Longest empty135 daysSaint-Hyacinthe—Bagot—Acton, since Jun 19, 2026
- Seats empty6of 343; 7 at the most, Aug 28, 2026
- By-elections held7since Apr 28, 2025; 1 gain
- By-election cutoffJan 15, 2029nine months before Oct 15, 2029
Saint-Hyacinthe—Bagot—Acton’s by-election must be called by December 19, 2026, the soonest of the 6 empty House of Commons seats waiting for a call, as of November 1, 2026. The latest polling day that deadline allows is February 1, 2027. Scarborough North’s by-election is the next to fall due, by February 13, 2027. No polling day was called for any of the empty seats as of November 1, 2026. Saint-Hyacinthe—Bagot—Acton fell empty on June 19, 2026, the earliest of the 6 empty seats. On November 1, 2026, 6 of the House of Commons’ 343 seats were empty. From August 28, 2026 to August 30, 2026, 7 seats were empty, the most at once since the election of April 28, 2025. Since the election of April 28, 2025, 7 by-elections have been held, the first on August 18, 2025 and the last on August 31, 2026. A seat that falls empty after January 15, 2029, nine months before the fixed election date of October 15, 2029, gets no by-election.
Nothing here states a cause as fact.
I. The empty seats and the clock on each
The Speaker’s warrant is the Speaker’s notice to the Chief Electoral Officer that a seat is vacant, and a by-election’s clock starts when Elections Canada receives it, not on the day the member leaves. The writ is the order that starts the by-election itself. The writ must then be issued between the 11th and the 180th day after the warrant, under the Parliament of Canada Act. Polling day is a Monday, between the 36th and the 50th day after the writ, under the Canada Elections Act. Every empty seat had its warrant recorded as of November 1, 2026, each from the Elections Canada news release that announced it.
| Seat | Province | Elected in 2025 | Sat as | Empty since | How | Warrant received | Must be called by | Latest polling day | Polling day called |
|---|---|---|---|---|---|---|---|---|---|
| Saint-Hyacinthe—Bagot—Acton | Quebec | BQ | IND | resigned | — | ||||
| Scarborough North | Ontario | LPC | LPC | resigned | — | ||||
| Rosemont—La Petite-Patrie | Quebec | NDP | IND | resigned | — | ||||
| Laurier—Sainte-Marie | Quebec | LPC | LPC | resigned | — | ||||
| Yorkton—Melville | Saskatchewan | CPC | CPC | resigned | — | ||||
| Brantford—Brant South | Ontario | CPC | CPC | resigned | — |
Each row is a seat, with the party that won it at the election of April 28, 2025 and the caucus its member sat with when it fell empty. The dates are the day it fell empty, the day the warrant reached Elections Canada, the last day a by-election may be called and the latest polling day that allows. A row gains its polling day when Elections Canada announces the by-election, and leaves the table when the seat is filled. Each seat’s own page carries its member and its 2025 result.
| From | Seats empty |
|---|---|
| 6 | |
| 5 | |
| 7 | |
| 6 | |
| 5 | |
| 4 | |
| 2 | |
| 0 | |
| 3 | |
| 2 |
14 rows in all, the first 10 printed; every row is in vacant.csv · sources 1, 2, 3
The count above moves on each day a seat falls empty or a by-election fills one.
II. The by-elections held since the election
Of the by-elections held since the general election of April 28, 2025, 1 changed the seat’s party against the 2025 result and 6 did not.
| Polling day | Seat | Won by | Member | Against 2025 | Results |
|---|---|---|---|---|---|
| Battle River—Crowfoot | CPC | Pierre Poilievre | hold | official | |
| Scarborough Southwest | LPC | Doly Begum | hold | official | |
| Terrebonne | LPC | Tatiana Auguste | hold | official | |
| University—Rosedale | LPC | Danielle Martin | hold | official | |
| Beaches—East York | LPC | Tanveer Shahnawaz | hold | validated | |
| Chicoutimi—Le Fjord | LPC | Daniel Gobeil | gain from the Conservatives | validated | |
| North Vancouver—Capilano | LPC | Braeden Caley | hold | validated |
Each result is marked official, from Elections Canada’s official voting results, or validated, from the returning officers’ validation of the count, which comes first. Every by-election held since the election carries one or the other, as of November 1, 2026.
III. The cutoff before the fixed date
No writ is issued for a seat that falls empty less than nine months before the date the Canada Elections Act fixes for the next general election, October 15, 2029. That makes January 15, 2029 the last day a seat can fall empty and still have a by-election, under the Parliament of Canada Act. Parliament can be dissolved before the fixed date, and a general election then fills every empty seat at once.
What this does not say, and how it was made. the empty seat whose by-election must be called first, among the seats with a warrant and no polling day Two series may be shown moving together, each dated and both figures printed. The page never states a cause as fact: each reading below is labelled a reading, with what would confirm or refute it. A move inside the pollsters’ stated error is said to be inside it. A census figure describes a riding, never its voters.